30, break new ground 有了新的突破 (来源：英语问答中心 http://ask.englishcn.com)

    His architectural design broke new ground in the field. (来源：英语分类信息 http://fl.englishcn.com)

    31，benefit concert 慈善音乐会

    We need to let everyone know about the benefit concert, but we don’t have much money for advertising.

(来源：英语麦当劳－英语杂志 www.EnglishCN.com)

    32, busy signal 占线

(来源：英语麦当劳－英语杂志 www.EnglishCN.com)

    I’ve been calling David for the past half hour, but I keep getting a busy signal. (来源：英语e问e答 http://ask.englishcn.com)

    33,between you and me 你我之间，保密 (来源：英语交友 http://friends.englishcn.com)

    34，call for

(来源：专业英语学习网站 http://www.EnglishCN.com)

    A,打电话找 (来源：英语麦当劳－英语杂志 EnglishCN.com)

    Tom just called for you.

    B,预报 (来源：EnglishCN英语博客基地)

    The forecast calls for heavy rain again tonight. Aren’t you glad we’ll be getting away from this for a week?

    C,问 (来源：英语论坛 http://bbs.englishcn.com)

    It’s probably in the new part of town. We’ll have to call for directions.

(来源：英语麦当劳www.EnglishCN.com)

    35, call it a day 就此结束

    A: I’m really glad our club decides to raise money for the children’s hospital, and most of the people we’ve phoned seemed happy to contribute.

    B: Yeah, I agree. Now we’ve gone through all the numbers on our list now, so I guess we can call it a day. (来源：EnglishCN英语问答中心[e问e答])

    36,cash the check 兑现支票

    Have your sister cashed her paycheck? (来源：英语麦当劳－英语杂志 www.EnglishCN.com)

    37,clear off 收拾，整理

    It’s about time we clear off the desk. (来源：英语学习门户网站EnglishCN.com)

    38,come down (雨，雪)下起来

    The heavy rain is coming down, now.

(来源：英语美食指南 http://food.englishcn.com)

    39, come in first in the race 比赛第一名 (来源：英语麦当劳－英语杂志 EnglishCN.com)

    Not only did Jill come in first in the race but she also had her best running time of the season.

    40,come what may 不管怎样

    We’ll pick you up tomorrow at eight, come what may.

(来源：专业英语学习网站 http://www.EnglishCN.com)

    41,cost somebody an arm and a leg

    A: Did you see the diamond ring Bill gave to Linda? (来源：英语图片 http://photo.englishcn.com)

    B: I sure did. It must have cost him an arm and a leg. (来源：英语麦当劳－英语学习门户 EnglishCN.com)

    42, cut it out 闭嘴

    I told you to cut it out. (来源：英语美食指南 http://food.englishcn.com)

    43,be cut out for 生来时做……的

(来源：英语麦当劳 http://www.EnglishCN.com)

    Dr. Hamilton doesn’t feel Larry is cut out for the medical profession. (来源：英语图片 http://photo.englishcn.com)

    44,department chair 系主任 (来源：专业英语学习网站 http://www.EnglishCN.com)

    I didn’t write that memo to the department chair.

(来源：英语交友 http://friends.englishcn.com)

    45,dirt cheap 非常便宜

    A: You’ve already furnished your apartment?

    B: I’ve found some used furniture that was dirt cheap. (来源：英语论坛 http://bbs.englishcn.com)

    46, do with 用…..凑合; do without 没有……也行

    You can do with your girlfriend. (来源：英语图片 http://photo.englishcn.com)

    You can do without your girlfriend

(来源：英语电影下载 http://bt.englishcn.com)

    47, dog tired 特别累，同义：run down; worn out; out of steam (来源：英语博客 http://space.englishcn.com)

    I’m dog tired these days. I’m working on seven articles.

(来源：英语分类信息 http://fl.englishcn.com)

    48, down jacket 羽绒服

    49，drive somebody up the wall 让某人发疯；同义：drive somebody out of one’s mind (来源：英语美食指南 http://food.englishcn.com)

    The sound of all that raffic is driving me out of my mind. (来源：EnglishCN英语博客基地)

    50, fall back on 依赖

(来源：英语麦当劳－英语杂志 EnglishCN.com)

    A: Were you able to understand that French novel without any help from the teacher?

(来源：英语电影下载 http://bt.englishcn.com)

    B: I did pretty well, but I had to fall back on my dictionary occasionally. (来源：EnglishCN英语博客基地)

    51, fill a prescription 按处方抓药 (来源：英语麦当劳www.EnglishCN.com)

    Would you please fill this prescription for me? (来源：专业英语学习网站 http://www.EnglishCN.com)

    52, fill in for 代替；同义：fill one’s place(position, shoes); take the place of; take over Say, Dave, can you fill in for me tonight at the restaurant? I’d like to go out of town. (来源：英语学习门户网站EnglishCN.com)

    53,food for thought 令人思考的东西；同义：thought-provoking (来源：英语美食指南 http://food.englishcn.com)

    There is a lot food for thought in what he had to say.

(来源：英语图片 http://photo.englishcn.com)

    54,for nothing 免费 (来源：英语聊天室 http://chat.EnglishCN.com)

    To pay to see that movie would be foolish, when you can see it on TV for nothing. (来源：专业英语学习网站 http://www.EnglishCN.com)

    55,from top to bottom 从上到下

(来源：英语美食指南 http://food.englishcn.com)

    A: Maybe you lost your wallet in this room. (来源：英语资料下载 http://download.englishcn.com)

    B: I’ve searched it from top to bottom.. (来源：英语图片 http://photo.englishcn.com)

    56, get of on the wrong foot 开始事情就做错了

    I got off on the wrong foot, and I don’t have any idea which way to turn now. (来源：英语聊天室 http://chat.EnglishCN.com)

    57,get a lot out of something 从……学到很多 (来源：英语分类信息 http://fl.englishcn.com)

    The training program was difficult, but she got a lot out of it.

    58, get at 想说 (来源：英语学习门户网站EnglishCN.com)

    Do you understand what I’m getting at? (来源：英语论坛 http://bbs.englishcn.com)

    59, get away with 对…..摆脱惩罚 (来源：EnglishCN英语问答中心[e问e答])

    A: Did you know that Bob is leaving for home tonight? He isn’t planning to take his final exams.

    B: He can’t get away with that